Tube-clamp



s. E. Evms mn w. common.

TUBE CLAMP.

APPLICATION FILED OCT. 3|| 918:

1,330,523. I Patented Feb.10,1920.

GEORGE'E. Evrr'rs AND'WALTEB eon'rrnicn, or wnrnnnunr, CO1T1TECTICUT.

avian-enemy.

Application filed October 31, 1918. Serial No. 260,480.

To aZZwhom it may concerar 1 Be it known that we, GEORGE E.- Evrr'rs and WALTER Gonrrnrorr,

' United States, residing at Waterbury, in

' provide a the county of New Haven, State of Connecticut, have invented certain new and usefu Improvements in Tube-Clamps; and we do hereby declare the following to be a full, Cl62t1,.2111(l exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. I y

This invention relates to newiand useful improvements in clamps and particularly to clamps used in pinchingthe rubber tube of a fountain syringe to cut of]? the flow of water therethrough. v

One object of the present invention is to novel and improved device which is capable of easily cutting off the flow of water through the pipe, and which can be readily and conveniently grasped and operated by one hand.

Another object is to provide a novel'and improved device of this character wherein the flow of water through the tube can be controlled and permitted to flow at differ ent speeds and volumes.

Other objects and advantages will be apiparent from the following description when taken in connection with the accompanying drawing.

In the drawing: Figure 1 is a perspective view of the device in fully closed position, shown in dotted'lines. 7

Fig. 2 is a vertical longitudinal sectional View through the device and the hose or pipe, showing the device in its fully closed position. v

Fig. 3 is a similar sectional view showing the device in one of its adjusted positions.

Referring particularly to the accompanye shown the frame of ing drawing, there is from a smgle the device which is formed metal blank. This frame includes the base portion 10 from one end of'whic'h there extends the hook-shaped finger piece 11, and from the other end the upwardly turned ring portion 12. From the opposite sides of the extend the parallel side members 13 each of which is formed with-an angular longitudinally extending slot 14. In one wall, preferably the upper Wall of the inner end of the slot, there are formed the two or more notches 15, the purpose of Specification of Letters Patent.

citizens of the I the pipe being i Patented Feaio, 1920.

which will presently appear. 'Dis'posed transversely between the side members 13 is an externally scored or roughened roller 16, having the trunnions 17 which are engaged in the said slots 14. Through the ring mem-' ber 12 and between'the base member 10 and the roller, the hose or rubber pipe of the syringe is disposed, the roller bearing aga nst the said pipe, as will be readily understood.

It will be noted that the portion of the slot of each side member of the frame converges toward the base member. in a direction toward the ring member 12, whereby when the roller is moved" to dispose its trunnions in said portion of the slot, the roller will squeeze the hose between it and the base member to such a degree that the flow of liquid through the pipe will be stopped. WVhen, however, it is desired to regulate the flow, sothat a stream of the required volume and speed will roller is moved so as to engage its trunnions in one or the other of the sets of notches 15. The pressure of the hose and fluid therein will serve to hold the trunnions in said notches without the necessity of holding the same with the fingers of the hand of the operator.

By en aging one finger the thum b of the hand can engage the roller so that the same may be pushed along the slots into engagement with thenotches, or into the other end portion of the slot; 'By

pressure of the'back of the finger against of the frame, and a hose engaging roller.

carried by the frame and rotatable into and with the hook 11,

be produced, the

out of clamping relation to said clamping surface, said roller being exposed for superficial manipulation. i I 2. A cut-ofi" and controlling device'for a syringe hose'including a frame .having side and bottom members, a fingerpiece on one end of the frame, and a clamping roller journaled in the side members, and exposed for superficial manipulation.

3. A cut-ofi' and controlling device for a syringe hose including a frame having parallel side members formed with longitudinal angular slots, one wall of each of the slots being forrned yvith notches, one portion of each of the slots being disposed in con' vergent relation with the base portion ofthe frame, a fingerpiece at one end of the base 7 portion, and asuperficially exposed clampingrol'ler disposed' between the side members and having trunnions: movable in the said slots and arranged to engage in said notches.

L -A CUt-Ofl and controlling device for a syringe hose including a frame having a clamping surface, and a hose engaging 

